Comment on whether each of the following is a homogeneous mixture or a heterogeneous mixture: (a) air in a closed bottle, (b) air over New York City.

Short Answer

Expert verified
Based on the analysis, (a) air in a closed bottle is a homogeneous mixture, while (b) air over New York City is a heterogeneous mixture.

Step by step solution

01

Analyzing the first option

Starting with the air in a closed bottle, one can observe that the composition of the air is fairly constant throughout the bottle, meaning that the distribution of the different gases (oxygen, nitrogen, carbon dioxide, etc.) is uniform. Therefore, air in a closed bottle is a homogeneous mixture.
02

Analyzing the second option

Analyzing the air over New York City, one could assume that the distribution of gases is probably not uniform due to pollution from cars, factories, and other sources. The concentrations of pollutants can vary greatly from one location to another. So, the air over New York City is considered a heterogeneous mixture.

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